![doom 2019 infinite ammo doom 2019 infinite ammo](https://cdn.player.one/sites/player.one/files/2016/05/18/doom-cheats-glitch.jpg)
While playing the game, press to display the console window. Pressing R on your keyboard reveals all the cheat codes you've unlocked so far. Note: This is the 2016 game by iD Software, not to be confused with the 1993 game Doom by iD Software. Choose 'Mission Select' to bring up the list of missions you've completed so far. To use a code, launch Doom Eternal, select 'Campaign' followed by your save.